This will turn into a chicken and egg discussion.
One school of thought will argue that Bill B doesn't use a bell-cow type of back in their "system". The last 5 years, only 1 time a RB has had 200 rushing attempts.
The other school of thought says that Bill B would use a bell cow back if he had one citing how productive A Smith or C Dillon was....which was a long time ago relatively speaking.
Ridley is the last option on passing plays, assuming he's even a designed option at all. A team with 60-70 RB receptions a year that throws as much as NEP must believe it has better options.
I don't see him having much value in PPR and don't see him getting 1K yards rushing so if you are drafting him in traditional scoring leagues, it has to be on your guess that he'll score 8-10 TD's.
The fact they use Hernandez and Woodhead running the ball tells me all I need to know about relying on an NEP RB.
I'm not high on Ridley at all, won't be burning a pick on him unless he falls to me very, very far. Much rather pay a slightly higher price for a guy like Helu or Bradshaw. I'd even rather take Shonne Greene at a similar ADP.